Presentations of the ALERT Workshop 2004

ALERT Workshop 2004
11th-13th October 2004, Aussois, France

Degradations and Ageing of Geomaterials
Coordinators: B. Sluys and J. Vaunat

  • Reactive-diffusive-chemoplasticity for structuration (aging) of saturated soils (T. Hueckel, L. B. Hu)
  • Implicit integration of mixed isotropic-kinematic hardening elasto-plastic model for structured soils (A. Amorosi, D. Boldini)
  • Recent advances in modelling destructuration of soft natural clays (M. Karstunen)
  • Microstructure and compactive instabilities of a stabilised residue (M. Arroyo, R. Nova, M. Tsige)
  • Attrition and particle breakage under monotonic and cyclic loading (F. Mayoraz, L. Vulliet, L. Laloui)
  • Elasto-plastic deformation of granular materials (R. Garcia-Rojo, H.J. Hermann)
  • On diffusion/coupled analysis of discontinuities and cracks with zero-thickness interface elements (J.M. Segura, I. Carol)
  • Creep-damage constitutive relation for concrete: experiments and constitutive modelling (G. Pijaudier-Cabot, M. Omar, A. Loukili, Y. Le Pape)
  • Effects of confinement on the fracture properties of concrete (D. Sfer, I. Carol)
  • Local and nonlocal anisotropic damage models for quasi-brittle materials (R. Desmorat)
  • Continuous-discontinuous modelling for failure in geomaterials (A. Simone, L.J. Sluys)
  • Multi-scale thermomechanical coupling in brittle rupture (J.B. Colliat, A. Ibrahimbegovic, L. Davenne)
  • Indentation for determination of mechanical properties and damage diagnosis in natural building stones (E. Papamichos, S.-A. Papanicolopulos, I. Larsen, L. Alnas)
  • Comparison of experiment versus conceptual contact model to study the joint asperity degradation process (M. Sharifzadeh, Y. Mitani, T. Esaki)
  • Compaction bands and permeability reduction: experimental and numerical study of Tuffeau de Maastricht rock (T. Baxevanis, E. Papamichos, O. Florens)
  • Aspects of modelling of degradation of mudstones (A. Gens, J. Vaunat)

Gravitational Flows and Structure Vulnerability
Coordinators: F. Calvetti and F. Nicot

  • The rheophysical approach in the study of natural gravity-driven flows (C. Ancey)
  • Flowslide in pyroclastic soils: triggering mechanisms (L. Cascini)
  • Numerical Modelling of Fast Slope Movements (M.Pastor, J.A.Fernandez Merodo, P.Mira, M.I.Herreros, E.Gonzalez, M.Quecedo, R.Tamagnini)
  • Numerical analysis of non-isothermal multiphase geomaterials with application to the initiation of landslides (L. Sanavia and B.A. Schrefler)
  • Fluidization in artesian conditions (H. Steeb, I. Vardoulakis)
  • Influence of heterogeneity on slope stability (M.A. Hicks)
  • Rock mass fragmentation and slope stability, geological point of view (T. Villemin,  F. Donzé)
  • Rockfall impacts: experiments and modelling (F. Calvetti, C. di Prisco)
  • Comparison of different DEM approaches (S. Hentz, F. Calvetti)
  • Failure mechanism of rock falls (M. Frayssines, D. Hantz)
  • Vulnerability of concrete structures under seismic loadings, modelling aspects (J. Mazars, P. Kotronis)
  • Dicrete element modeling of the S.E. corner of Acropolis (C. Lambert, I. Stefanou, J. Galizzi, F. Donzé, I. Vardoulakis, F. Darve)
  • Numerical modeling of debris flows and snow avalanches (B.W. McArdell, P. Bartelt)
  • A micro-directional model for cohesive-frictional materials, application to a snowpack (F. Nicot, F. Darve)
  • A framework for the constitutive modelling of dry snow (S. Cresseri, C. Jommi)

Multiscale Approachs in Geomechanics
Coordinators: M. Jirasek and J. Lewandowska

  • The role of structural mechanics in material analysis and design
    (A. Ibrahimbegovic, D. Markovic and D. Brancherie)
  • Macroscopic description of the site-city seismic interaction
    (C. Boutin and P. Roussillon)
  • Multiscale approach to modeling of fiber reinforced cementitious composites (P. Kabele)
  • Multi-scale modeling of damage in masonry structures (T. Massart)
  • Numerical tools for analysis of hierarchical composites (M. Lefik)
  • About flow and transport phenomena in rotating soil sample
    (J.-L. Auriault and Ch. Geindreau)
  • Hydro-mechanical modelling of expansive clays using a double structure approach (M. Sanchez, A. Gens and J. Vaunat)
  • Darcy-scale modelling of dissolution patterns in porous media
    (M. Quintard)
  • Infiltration in double-porosity soils: experiments and comparison with modelling (J. Lewandowska, A. Szymkiewicz, W. Gorczewska and M. Vauclin)
  • Fluctuations inside shearbands (H. Herrmann)
  • Micromechanics of dilatancy fluctuations in shear bands
    (F. Alonso-Marroquin and I. Vardoulakis)
  • Micro-mechanics and continuum mechanics approaches for granular media (F. Froiio, I. Vardoulakis and D. Caillerie)
  • Coupled finite element for local second gradient model in saturated porous media (F. Collin, R. Chambon and R. Charlier)
  • Finite element studies on shear localization in granular bodies within extended hypoplasticity (J. Tejchman)
  • An improved microplane model for concrete with mixed mode fracture (F. C. Caner, Z. P. Bazant and I. Carol)
  • Discrete approach for studying fracture of brittle materials (A. Delaplace)
  • Development of a new mechanical model for rock joint, application to an evaluation of the scale effect (F. Vallier, Y. Mitani, M. Boulon and T. Esaki)
  • Nonlocal damage model with transition to discrete crack (M. Jirasek and S. Marfia)

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